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(No Model.)

2 Sheets-Sheet 1.

G. CHENU.

RAILWAY 0mm.

Patented Dec. 18, 1894.

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RAILWAY CHAIR.

Patented Dec. 18, 1894.-

FIG -6- NITED STATES PATENT OFFICE.

cnARLEs cnENU, 0F ETAMPFs, FRANCE.

RAILWAY-CHAIR. I

SPECIFICATION forming part of Letters Patent No. 53Q,925, dated December 18, 1894.

Application filed August 6, 1894. Serial No. 519,581- (No model.) Patented in France August 31. 1892, No. 224,053.

To all whom it may concern: 7

Be it known that 1, CHARLES OHENU, merchant, of tampes, Seine-et-Oise Department in the Republic of France,have invented new Improvements in Intermediate Chairs for Railway-Rails, which tighten automatically and without the use of a wedge, (for which I have obtained Letters Patent of France for fifteen years, No. 224,053, dated August 31, 1892;) and I do hereby declare that the following is a full and exact description thereof, reference being made to the accompanying drawings.

My invention has for its object an intermediate chair for railway rails, in which the fixing and tightening of the rail are operated automatically and without a wedge. In-this chair the opening is formed by two special cheeks of great resistance, which connect with the bottom of the chair and of which the inner sides constitute the chair surfaces of two crank curvilinear levers, the one opposite the other, and between which the rail is placed. As the lower head of the rail rests on the sides forming grips, the result is that the tightening of the latter on the rail is produced by the weight of the rail and also by the weight of the vehicle over the said rail,,and that this tightening becomes all the greater as the load on the rail increases.

In the accompanying drawings: Figure 1 is a side elevation of my intermediate chair, the tightening of which is automatic. Fig. 2 isa plan view of Fig. 1. Figs. 3, 4 and 5 are respectively a front view, an elevation, and a plan view of one of the two grips of the chair, which are identical. Fig. 6 is a vertical section of the chair on the line 1-2 of Fig. 2, the grips being removed. Fig.7 is a plan corresponding to Fig. 6. Fig. 8 represents a modification of the chair with only one tightening grip.

The base a. of the chair is cast with the cheeks in two parts I) b and c c, which are connected inwardly by the platform d, which is inclined to the extent of one-twentieth. The inner profile of the cheeks b b and o 0? reserves at its base circular recesses e f, to constitute the chair surfaces of the grips, the pivoting of which is thus allowed. The parts b b and c 0' leave between them the space for the upwardly extending sides of the grips g g, hh', which are to carry the rail '1', and register automatically with it.

The base of the chair is fixed to the sleeper in the usual manner, as, for instance, by means of three screw bolts as shown at is Z m.

The gripsg g and h h are two crank lovers of a particular model, the apex of the angle being formed by the cylindrical parts g 71 which fit tight in the concave recesses e f, of the checks 1) b, c a, so that the grips can turn in these recesses forthe purpose of either opening orclosing, and automatically tightening on the rail. The up-turning sides g h of the grips fit tightly to the rail at those surfaces which come in contact with it, so as to secure a perfectly permanent contact when the rail is laid. The lower sides g h constitute together the platform d, on which the lower head of the rail rests. When the grips are separated, the rail can be readily and easily put in or taken out. Then, when the rail has thus been put in between the opened grips, a slight pressure, if necessary, will oblige the grips to close until they come and tighten on the middle plate and lower head of the rail, and that with all the greater strength as the weight of the rail increases, or as the load carried by the rail becomes heavier.

It might be feared that when there is neither pressure nor load on the rail, the latter might become loose for any reason whatever; but to remove this fear, which I do not thinkj ustified,

each of the grips may be cast with the two projecting parts 19 and p, able to place themselves above the cheeks b and c, of the chair. Between the parts 10 and b, on the one hand, and the parts 10 and c, on the other hand, are intercalated two tapering keys q and q, partially sunk in recesses provided for that purpose in the cheeks b and c, and under the projections 10 and 10, which keys when in position oppose themselves to the untightening of the grips, and insure the permanent fixing of the rail. I may establish, on the hereinbefore described principle, a chair having a single pivoted grip h h (Fig. 5) ,while obtaining at the same time the, automatic tightening required. In this case, the cheek b of the chairthat is to say, the cheek which is the outer one with respect to the line of rails, will hold the rail, and the pivoted grip h it. will be applied and arranged on the inside to act automatically as hereinbefore de scribed in connection with the chair having two grips.

I claim- 1. An intermediate chair for railway rails, and which tightens automatically and without the use of a wedge, comprising two cheeks, each in two parts east with the base of the chair and opened to receive two grips shouldered in recesses reserved for that purpose in the lower part of the cheeks, these grips, on the lower part of which the rail may rest, being, moreover, provided with side projections, which place themselves above the two parts of the cheeks of the chair, and sufficiently far from the said parts to allow of readily and easily puttingin between them two tapering keys put in recesses in the opposite parts of the said cheeks.

2. An intermediate chair for railway rails,

and which tightens automatically and without the use of a wedge, comprising on the outside a cheek against which the rail is supported, and, on the inside, a check in two parts, which receive a grip which shoulders itself in recesses reserved for that purpose at the base of the parts of the said inner cheek, and which carries the rail by means of one of its sides, and chair, with its other side on the middle part between the heads of the said rail, in order to apply and tighten it against the outside cheek, substantially as hereinbefore described, and shown in the accompanying drawings.

In witness whereof I have hereunto set my hand in presence of two witnesses.

CHARLES OI'IENU. Witnesses:

CHARLES CHIERRY, EUGENE WATTIE. 

